About the Minor League Data

Historical performance data for professional leagues (affiliated minor
leagues, independent minor leagues, fall/winter leagues, and other
international leagues) is provided by and licensed from 24-7 Baseball and
Chadwick Baseball Bureau. It incorporates the work of many stalwart baseball
researchers, including Cliff Blau, Art Cantu, Frank Hamilton, Reed Howard,
Kevin Johnson, Bob McConnell, Jack Morris, and Ray Nemec, as well as members of
the Minor Leagues Committee of the Society for American Baseball Research.

Perhaps most importantly, it builds upon the seminal work of Ed Washuta, who
magnanimously provided the framework to make the whole thing possible.